Abstract:Recent research has shown that second-order statistics (SOS) are sufficient to blindly identify or equalize a broad class of channels. We relax the assumption of perfect carrier recovery and determine if SOS are sufficient for channel identification, equalization, and carrier recovery in the presence of frequency offset. We show that while equalization may still be possible, channel identification and carrier recovery require use of higher-order statistics. We show that SOS-based channel identification is poss… Show more
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